I prefer the Brazilian over the Argentinian beef, but could also be because I really did not have time to eat the beef down there. Was there 2 nights and ate a Lechon feast one night and the other was some tiny restaurant in a very small town of Freyere.
Prefer the Brazilian beef as the best in the world...taste is so much better and after a full meal -- one does not need to sleep like with a lot of the US beef.